Lena Holger Books

Ellen Thesleff

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A brilliant painter and early modernist, Finnish artist Ellen Thesleff (1869-1954) was taught to paint in the Realist style and went through a Symbolist phase, before maturing into a bold and fresh...

Rista liv

By Lena Holger

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Per Hammarstrom

By Lena Holger

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Helene Schjerfbeck

By Helene Schjerfbeck

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Bittan Bergh Valberg

By Bittan Bergh Valberg, Lena Holger

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Sommarnattskonserter

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Kroppen

By Torsten Weimarck, Lena Holger

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Lisa Bauer

By Lena Holger

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En biografi över Lisa Bauer (1920-2003), född och uppvuxen i Göteborg. Hon var från början tecknare, och blev alltmer genial. Särskilt samarbetade hon med en rad arkitekter hennes man var f.ö. träd...

Helene Schjerfbeck

By Lena Holger

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Helene Schjerfbeck

By Lena Holger

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.